/Engine/Plugins/AudioGameplay/Source/AudioGameplay/Public/AudioComponentGroup.h
Allow an externally created AudioComponent to share parameters with this SoundGroup.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, BlueprintCosmetic, Category=AudioComponentGroup) void AddExternalComponent ( [UAudioComponent](API\Runtime\Engine\Components\UAudioComponent) * ComponentToAdd )